ITEM NAME:7inch Multi-functional Triangle Angle Protractor Cast Aluminum Measuring Tool Product Description Description: Features: 1. Cast aluminum made, integral forming process, strong and durable 2. Stamping scale, durable and wear resistant 3. Light and convenient and durable Use: multi-functional engineering supplies Specifications: Material: cast aluminium Product size: about 18x18x2cm/7.09x7.09x0.79'' Product weight: 130g Included: 1 x Triangle Protractor.Included: 1 x Triangle Protractor. Material: cast aluminium. Cast aluminum made, integral forming process, strong and durable. Stamping scale, durable and wear resistant. Product weight: 130g. Use: multi-functional engineering supplies.